National pride is a wonderful thing; but that is silly.
Left to themselves, the present Greeks have neither the resources nor the inclination to spend national effort and wealth. No tourist $, no interest.
Your post siginifies nothing really..except an unhealthy bias against the Hellenic people. A strange way of scapegoating your own ignorance.
The Greek people have managed to conserve their past even though barbarians (like the Taliban in Afghanistan) from Turks to Germans have done what they could to destroy that past.